John B. Steward

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McKinney, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Process for treatment of aqueous environments containing a water-so...
- Patent number 7,147,787
- Issue date Dec 12, 2006
- Microtek Medical Holdings, Inc.
- Robert D. Chisholm
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Process for treatment of aqueous environments containing a water so...
- Patent number 6,623,643
- Issue date Sep 23, 2003
- Microtek Medical Holdings, Inc.
- Robert D. Chisholm
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 30 patents

Information Patent Application
Strippable PVA coatings and methods of making and using the same
- Publication number 20050061357
- Publication date Mar 24, 2005
- John B. Steward
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
Polyvinyl alcohol filter media
- Publication number 20040192135
- Publication date Sep 30, 2004
- Baosheng Lee
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Process for treatment of aqueous environments containing a water-so...
- Publication number 20030205524
- Publication date Nov 6, 2003
- Microtek Medical Holdings, Inc.
- Robert D. Chisholm
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Application
Process and system for treatment of aqueous environments containing...
- Publication number 20020185448
- Publication date Dec 12, 2002
- Robert D. Chisholm
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE